package com.xwl.learn.chapter05;

import java.util.Scanner;

public class sanmu {
    public static void main(String []args){
        //<60 差 60-70 阅 70-80 良 80-90优 90 ‘牛’
        System.out.println("输入你的成绩。");
        Scanner sc = new Scanner(System.in);
        int fs = sc.nextInt();
        char a = (fs<60)?'差':(60<=fs&&fs<70)?'阅':(70<=fs&&fs<80)?'良':(80<=fs&&fs<90)?'优':'牛';
        System.out.println(a);
    }
}
